Create Daily product Revenue table
CREATE TABLE daily—product_revenue
> AS
> SELECT o.order_date ,
oi.order_item_product_id ,
round(sum(oi.order—item_subtotal), 2) AS revenue
FROM orders o JOIN order _ items oi
ON o.order_id = oi
> WHERE o.order_status IN ('COMPLETE' ,'CLOSED')
GROUP BY o.order_date, oi .order_item_product_id;